<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>生物</title>
</head>
<body>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" style="width: 100%;height: 1000px">
<!--    <polygon points="100,10 40,180 190,60 10,60 160,180"
             style="fill:lime;stroke:purple;stroke-width:5;fill-rule:evenodd;" />-->
    <title>Grouped Drawing</title>
    <desc>Stick-figure drawings of a house and people</desc>

    <defs>
        <g id="house" style="stroke: black;">
            <desc>House with door</desc>
            <rect x="0" y="41" width="60" height="60"/>
            <polyline points="0 41, 30 0, 60 41"/>
            <polyline points="30 101, 30 71, 44 71, 44 101"/>
        </g>

        <g id="man" style="fill: none; stroke: black;">
            <desc>Male stick figure</desc>
            <circle cx="10" cy="10" r="10"/>
            <line x1="10" y1="20" x2="10" y2="44"/>
            <polyline points="1 58, 10 44, 19 58"/>
            <polyline points="1 24, 10 30, 19 24"/>
        </g>

        <g id="woman" style="fill: none; stroke: black;">
            <desc>Female stick figure</desc>
            <circle cx="10" cy="10" r="10"/>
            <polyline points="10 20, 10 34, 0 44, 20 44, 10 34"/>
            <line x1="4" y1="58" x2="8" y2="44"/>
            <line x1="12" y1="44" x2="16" y2="58"/>
            <polyline points="1 24, 10 30, 19 24" />
        </g>

        <g id="couple">
            <desc>Male and female stick figures</desc>
            <use xlink:href="#man" x="0" y="0"/>
            <use xlink:href="#woman" x="25" y="0"/>
        </g>
    </defs>

    <!-- make use of the defined groups -->
    <use xlink:href="#house" x="0" y="0" style="fill: #cfc;"/>
    <use xlink:href="#couple" x="70" y="40"/>

    <use xlink:href="#house" x="120" y="0" style="fill: #99f;"/>
    <use xlink:href="#couple" x="190" y="40"/>

    <use xlink:href="#woman" x="0" y="145"/>
    <use xlink:href="#man" x="25" y="145"/>
    <use xlink:href="#house" x="65" y="105" style="fill: #c00;"/>
</svg>
</body>
</html>